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Episode 1, Season 4<br> The Universe in a Cup of Coffee

Season 4 Episode 1

About the Episode

This week Reactions delves into the surprisingly complex chemistry behind coffee. The science runs deep in this one. The chemistry of the universe is, in a way, in your morning cup of coffee — from the evolution of caffeine as a defensive chemical weapon in plants to the swirling eddies of milk and coffee fueled by diffusion, Brownian motion and other phenomena.

Aired: 01/23/17 | Expires: | Runtime: 4m 33s